Objective To investigate the response of multiple myeloma (MM) cells to 8-chloroadenosine 3',5'-monophosphate (8-Cl-cAMP) and the impact of arsenic trioxide (As2O3) on the above reaction.Methods MM-derived cell lines RPMI8226 and U266 were used as in vitro models.Cell apoptosis was evaluated according to cellular morphology and DNA content measured by flow cytometry.Meanwhile,rhodamine 123 (Rh123) staining and flow cytometry assay were used to detect the changes of mitochondrial transmembrane potentials (△ψm) in MM cells before and after the treatment.The synergic effects of 8-Cl-cAMP and As2O3 were evaluated by King' s formula.Results The 8-Cl-cAMP could induce growth inhibition of RPMI8226 and U266 cells in dose and time-related manners.The 8-Cl-cAMP could trigger apoptosis and △ψm collapse in MM cells through cellular morphology and flow cytometry analysis.As2O3 accelerated 8-Cl-cAMP-mediated apoptosis of RPMI8226 cells,but there were few synergic effects observed.Conclusion 8-Cl-cAMP could induce cell proliferation inhibition and apoptosis in MM cells.Mitochondria may be one of targets in 8-Cl-cAMP-mediated apoptosis.Furthermore,As2O3 catalyzes 8-Cl-cAMP-induced apoptosis.

10.3969/j.issn.1007-3969.2013.04.010

Objective: To investigate the effect of zinc supplementation on expression of MT-1 and MT-2 mRNA in placenta and small intestine of pregnant rats. Method: Eighteen healthy pregnant SD rats were randomly divided into two groups,normal control (ZC) and zinc supplement group (ZS). Rats in both groups were fed the same normal diet. Rats in ZC group drank deionized water and those in ZS group drank the water supplemented with 1.26 mmol/L Zn. At gestational 9.5d and 17.5d, serum zinc was determined by atomic absorption spectrophotometer and the expression of MT-1 and MT-2 mRNA of placenta and small intestine was examined by RT-PCR. Results: Serum zinc levels at gestational 9.5d and 17.5d were higher in ZS group. Relative expression of both MT-1 and MT-2 mRNA in placenta, MT-1 mRNA at gestational 17.5d and MT-2 mRNA at each time point were higher in ZS group. At gestational 9.5d, there was no difference between two groups in expression of MT-1 mRNA. Conclusion: The expression of MT-1 and MT-2 mRNA in placenta and small intestine was up-regulated by dietary zinc supplementation during pregnancy.

Objective:To investigate the effect of zinc supplementation on the expression profile of zinc transporters mRNA in placenta and small intestine of pregnant rats.Method:Eighteen pregnant SD rats were randomly divided into normal control(ZC)and zinc supplement group(ZS).Rats in ZC group drank deionized distilled water while those in ZS group drank water supplemented with zinc of 1.26 mmol/L.Placenta and small intestine were taken at gestational day 9.5 and 17.5,respectively.The expression of ZnT1,2,5 and 6 mRNA was examined by RT-PCR.Results:At gestational D9.5,the expression of placental ZnT1,2 and small intestinal ZnT1,2,6 mRNA was up-regulated,and placental ZnT5 mRNA down-regulated by dietary zinc supplementation.Dietary zinc intake had no effect on the expression of placental ZnT6 and small intestinal ZT5 mRNA.At gestational D17.5,the expression of placental ZnT5 and 6 mRNA was up-regulated by dietary zinc supplementation,and dietary zinc had no effect on the expression of placental and small intestinal ZnT1,2 mRNA.The expression of ZnT5 mRNA at gestational D17.5 in both groups was not detectable.Conclusion:Dietary zinc supplementation during pregnancy has significant effect on the expression profile of ZnT 1,2,5 and 6mRNA in placenta and small intestine of pregnant rats.

Background and purpose:Herpes zoster is a common adverse event associated with the use of bortezomib. The objective of this study was to evaluate the efifcacy of different therapeutic regimens of valacyclovir prophylaxis: continuously administration and intermittent administration. Methods: We retrospectively analyzed the efficacy, side effects, expense of valacyclovir and emotional states of 31 patients with multiple myeloma who received bortezomib and valacyclovir prophylaxis. Among them, 14 patients underwent continuously administration of valacyclovir, the other 17 patients underwent intermittent administration. Continuously administration was deifned as daily oral valacyclovir 600 mg without cessation during entire period of bortezomib treatment. Intermittent administration was deifned as patients received valacyclovir at a dose of 600 mg daily during chemotherapy, while discontinue valacyclovir at the intermission time of bortezomib treatment. Results: There were no herpes zoster in patients of 2 arms. Adverse events over grade 3 associated with valacyclovir were not observed. Intermittent administration of valacyclovir showed a superiority of economic beneift. The emotional status were depended on the therapeutic effects of multiple myeloma. For those relapsed or refractory patients, continuously administration of valacyclovir might aggravate depression and anxiety. Conclusion:Intermittent administration of valacyclovir at a dose of 600 mg daily appears to be an effective prophylaxis for herpes zoster in patients receiving bortezomib.

Objective To observe the effects of individual occupational therapy on cognitive impairment of elderly with stroke. Methods 60 elderly stroke patients with cognitive impairment were divided into treatment group (n=30) and control group (n=30). All the patients accepted routine rehabilitation, and the treatment group accepted individual occupational therapy in addition. They were evaluated with Mini-mental State Examination (MMSE) and modified Barthel index (MBI) before and after treatment. Results The score of MMSE increased significantly in the treatment group after treatment (P<0.001), but was not different significantly in the control group (P>0.05). The score of MBI increased significantly in both groups after treatment (P<0.05), and increased more in the treatment group than in the control group (P<0.001). Conclusion Individual occupational therapy can improve the cognitive function and the activities of daily living for the elderly stroke patients with cognitive impairment.

Objective To observe the effect of the health education and skills training for caregivers on health status of stroke patients and their family caregivers. Methods Hospitalized stroke patients were divided into the intervention group (n=38) and the control group (n= 36). Both groups received rehabilitation training for 1 month in hospital. The family caregivers of intervention group received Timing It Right education and skills training in addition. All the patients were assessed with the European Stroke Scale (ESS), Mini-Mental State Examination (MMSE), simple Fugl-Meyer Assessment (FMA), modified Barthel Index (MBI), and the caregivers were assessed with the General Health Questionnaire (GHQ-12) before and 3 months after intervention. Results The scores of ESS, FMA, MBI improved more in intervention group than in the control group after intervention (P<0.05), as well as their caregivers in the items of playing a useful part, under stress, overcoming difficulties, enjoying normal activities, facing up to problems, feeling unhappy and depressed, lossing confidence, thinking of self as worth of GHQ-12 (P<0.05). Conclusion Health education and skills training for family caregivers can improve the health of caregivers, and further improve the function outcome of stroke patients.

OBJECTIVETo conduct health economic evaluation of the prevention of mother-to-child HIV among pregnant women in Dehong prefecture, Yunnan province, China from 2004 to 2013.

METHODSData on cost were collected mainly from the annual prevention of mother-to-child transmission (PMTCT) reporting system of Dehong prefecture, and supplemented by HIV PMTCT-related resource allocation data from local health bureau. Effectiveness indexes were from local continuous HIV surveillance system and annual reported data. Cost-effectiveness and cost-utility analysis were used to conduct the health economic evaluation.

RESULTSFrom 2004 to 2013, 283980 pregnant women were screened for HIV, 2 059 were detected as positive, and the HIV positive rate was 0.73%. The total cost of the PMTCT program was 14 227 000 RMB after discounting, and the unit cost of positive case finding was 4 200 RMB. A total of 26 cases of adults and 325 infants were avoided HIV infection, and the cost-effectiveness ratio (CER) was 40 500 RMB/case. The total obtained quality adjusted life years (QALY) from the program was 8 911.5, each one of which cost 1 600 RMB/QALY. If the feeding pattern were breast feeding, CER would be 42 800 RMB/case and each one of QALY would cost 2 200 RMB.

CONCLUSIONBased on the cost-effectiveness and cost-utility analysis, the HIV PMTCT of Dehong prefecture had economic value, which indicates that continued investment is needed to strengthen local HIV PMTCT work.

Acquired Immunodeficiency Syndrome ; Adult ; Child ; China ; Cost-Benefit Analysis ; Costs and Cost Analysis ; Female ; HIV Infections ; Health ; Humans ; Infant ; Infectious Disease Transmission, Vertical ; Mothers ; Pregnancy ; Quality-Adjusted Life Years

OBJECTIVETo understand the characteristics and retention situation of clients in extension clinic of methadone maintenance therapy.

METHODSFrom December 20, 2010 to March 10, 2011, the system sampling method was used to get the cases. A total of 462 heroin addicts from 22 methadone maintenance therapy clinics and extension clinics located in Mangshi, Ruili, Longchuan, Yingjiang, Lianghe of Dehong prefecture, Yunnan province were interviewed, and the demographic characteristics, quality of life, urine testing results for morphine of the patients between the extension MMT clinic and standard MMT clinic were also collected and compared. A cohort study was conducted to analyze retention situation of the new clients with Kaplan Meier method during 9 months treatment.

RESULTSOf the 462 cases, 239 cases were from standard MMT clinic, and 223 cases were from the extension MMT clinic. Among them, 117 cases were new research objects into the group during the investigation. Among the clients of extension MMT clinic, 96.7% (147/152) of them were males, 37.5% (57/152) were Dai nationality, and 61.2% (93/152) were married, 38.8% (59/152) with primary school education, 95.4% (145/152) lived with their family or relatives, 96.7% (147/152) could arrive at the clinic from their habitation within 15 minutes. The positive detection rates 72% (13/18), 71% (24/34), 58% (30/52), 29% (15/52), 14% (6/44), 14% (4/29), 15% (5/34), 17% (6/35), 6% (2/33), 16% (5/31) of urine-morphine testing among new clients of extension MMT clinics decreased as the period of treatment lengthened (χ(2) = 61.04, P < 0.05). The period of retention of the clients in extension MMT clinics was 175-days averagely, with an average retention 122 days of when withdrawing. The retention rates of the clients were 52% (37/71)and 61% (28/46) at 9th month of the extension MMT clinics and standard MMT clinics respectively. There was no difference in the retention rate between those of two types of clinics (χ(2) = 0.82, P = 0.37) .

CONCLUSIONMost of the clients in extension MMT clinics lived with their family or relatives, and spent less time on the way to the clinics. After 9 months methadone maintenance therapy, the quality of life of clients in extension clinics was improved while addiction among them decreased. The extension clinic was an effective strategy for retention in remote areas.

China ; Cohort Studies ; Demography ; Heroin Dependence ; Humans ; Male ; Methadone ; Opiate Substitution Treatment ; Quality of Life ; Substance-Related Disorders ; Treatment Outcome

Humans ; Lung ; pathology ; Multiple Myeloma ; pathology